Karl Weierstraß facts for kids
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Karl Weierstrass



Karl Weierstraß  
painting by Conrad Fehr , 1895


Born  
Died  19 February 1897 
(aged 81)
Nationality  German 
Alma mater  University of Bonn 
Known for 

Awards 

Scientific career  
Fields  Mathematics 
Institutions  Gewerbeinstitut 
Doctoral students 
Karl Theodor Wilhelm Weierstraß (31 October 1815  19 February 1897) was a German mathematician. Most of his work is about using logic as a thorough foundation of analysis. He mainly used power series for this. He also provided foundations for the theory of elliptic functions, differential geometry and the calculus of variations. The BolzanoWeierstrass theorem is named in his honour: according to the theorem, finite series have certain properties: finite convergent series of complex numbers have at least one limit point, those of real numbers have at least two. He criticised earlier mathematicians for using assumptions too often, and being too vague in their definitions.
See also
In Spanish: Karl Weierstraß para niños
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